CN110867480A - Display panel and display device - Google Patents
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- CN110867480A CN110867480A CN201911205725.3A CN201911205725A CN110867480A CN 110867480 A CN110867480 A CN 110867480A CN 201911205725 A CN201911205725 A CN 201911205725A CN 110867480 A CN110867480 A CN 110867480A
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
Abstract
The embodiment of the invention discloses a display panel and a display device. The display panel comprises a first display area and a second display area, wherein the second display area is reused as a light sensation element setting area, and the second display area comprises a plurality of non-light-transmitting areas and light-transmitting areas; the light-transmitting regions comprise a first light-transmitting region and a second light-transmitting region; the non-light-transmitting areas and the first light-transmitting areas are arranged at intervals in a first direction, and the length of each first light-transmitting area is the same as that of an adjacent non-light-transmitting area in a second direction; the non-light-transmitting areas and the second light-transmitting areas are arranged at intervals in the second direction, and the length of the second light-transmitting areas in the first direction is equal to the sum of the lengths of the non-light-transmitting areas and the first light-transmitting areas adjacent to the second light-transmitting areas in the first direction; the first direction and the second direction intersect. According to the technical scheme of the embodiment of the invention, the screen occupation ratio of the display panel is improved under the condition that sufficient light of the light sensing elements under the screen is ensured, and the comprehensive screen display effect is realized.
Description
Technical Field
The present invention relates to display technologies, and in particular, to a display panel and a display device.
Background
With the development of display technology, full-screen occupies almost a large percentage of the consumer market and is a hot topic in the development direction. Taking a mobile phone as an example, a smart phone is more and more widely used and has more and more functions, and has become a necessary electronic device for people's daily life. At present, the screen occupation ratio of a smart phone is low, so that the user experience is poor.
Although full-screen products have many advantages, as the screen display area is enlarged, a plurality of problems are brought to the design of the mobile phone. The biggest contradiction is that the increase of the screen occupation ratio can reduce the upper and lower black edge areas of the mobile phone, so that a front camera (an optical device which becomes a necessary product on the mobile phone) arranged in the upper black edge area of the mobile phone has no arrangement space. The existing solution is that a non-display area is generally designed at the top end of a screen, for example, the currently widely adopted solutions such as "bang screen" and "water drop screen" are difficult to realize the effect of real full screen display. How to further increase the display area and not influence the field of vision of the camera under the screen, improve the screen ratio, realize the comprehensive screen becomes the technological problem.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which can improve the screen occupation ratio of the display panel and realize the comprehensive screen display effect under the condition of ensuring sufficient light of a light sensation element under a screen.
In a first aspect, an embodiment of the present invention provides a display panel, including a first display area and a second display area adjacent to the first display area, where the second display area is reused as a light sensing element setting area, the second display area includes a plurality of non-light-transmitting areas and light-transmitting areas on the periphery of the non-light-transmitting areas, and external light enters the light sensing elements through the light-transmitting areas;
the light-transmitting areas comprise a first light-transmitting area and a second light-transmitting area;
the non-light-transmitting areas and the first light-transmitting areas are arranged at intervals in a first direction, and the length of each first light-transmitting area in a second direction is the same as that of an adjacent non-light-transmitting area;
the non-light-transmitting areas and the second light-transmitting areas are arranged at intervals in a second direction, and the length of each second light-transmitting area in the first direction is equal to the sum of the lengths of one non-light-transmitting area and one first light-transmitting area adjacent to each second light-transmitting area in the first direction; the first direction and the second direction intersect;
the display panel also comprises a first substrate positioned on the light-emitting side of the display panel;
the length y of the non-light-transmitting region in the first direction1Satisfies the following conditions:
dtanθ≤y1≤2dtanθ；
the non-light-transmitting region is arranged inThe length in the second direction is y2Satisfies the following conditions:
dtanθ≤y2≤2dtanθ；
wherein the content of the first and second substances,
n1representing the refractive index, n, of the medium at the light exit side of the first substrate2Denotes a refractive index of the first substrate, and d denotes a thickness of the first substrate.
In a second aspect, an embodiment of the present invention further provides a display device, including any one of the display panels described above, further including:
the light sensing element is arranged in the second display area of the display panel and is positioned on one side departing from the light emergent surface of the display panel, and the light sensitive surface of the light sensing element faces the display panel.
The display panel provided by the embodiment of the invention comprises a first display area and a second display area adjacent to the first display area, wherein the second display area is reused as a light sensing element setting area, the second display area comprises a plurality of non-light-transmitting areas and light-transmitting areas on the periphery of the non-light-transmitting areas, and external light enters the light sensing elements through the light-transmitting areas; the light-transmitting regions comprise a first light-transmitting region and a second light-transmitting region; the non-light-transmitting areas and the first light-transmitting areas are arranged at intervals in a first direction, and the length of each first light-transmitting area is the same as that of an adjacent non-light-transmitting area in a second direction; the non-light-transmitting areas and the second light-transmitting areas are arranged at intervals in the second direction, and the length of the second light-transmitting areas in the first direction is equal to the sum of the lengths of the non-light-transmitting areas and the first light-transmitting areas adjacent to the second light-transmitting areas in the first direction; the first direction and the second direction intersect; the display panel also comprises a first substrate positioned on the light-emitting side of the display panel; the length y of the non-light-transmitting region in the first direction1Satisfies the following conditions: dtan theta is less than or equal to y1Not more than 2dtan theta; the length of the non-light-transmitting region in the second direction is y2Satisfies the following conditions: dtan theta is less than or equal to y2Not more than 2dtan theta; wherein the content of the first and second substances,
n1denotes the refractive index, n, of the medium on the light exit side of the first substrate2Denotes a refractive index of the first substrate, and d denotes a thickness of the first substrate. The plurality of non-light-transmitting areas are arranged in the second display area, and the non-light-transmitting areas can be provided with sub-pixels, so that normal display of the second display area is realized; by arranging a light-transmitting region at the periphery of the non-light-transmitting region and the length y of the non-light-transmitting region in the first direction1Satisfies dtan theta ≦ y12dtan theta or less, and a length y in the second direction2Satisfies the following conditions: dtan theta is less than or equal to y2The light ray vertically incident in the light transmission area can be transmitted to the display panel to reach the light sensing element (such as a camera) arranged in the second display area by less than or equal to 2dtan theta, and the visual field of the light sensing element is ensured; the light of the oblique incidence of the light-transmitting area can be shielded by the non-light-transmitting area to prevent interference, so that the screen occupation ratio of the display panel is improved under the condition that the light of the light sensing element is sufficient under the screen, and the comprehensive screen display effect is realized.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic partial structure diagram of a second display area of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the second display region;
fig. 4 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention;
FIG. 5 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention;
FIG. 6 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention;
FIG. 7 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention;
FIG. 8 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention;
FIG. 9 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention;
FIG. 10 is a schematic partial structure diagram of yet another second display area according to an embodiment of the present invention;
FIG. 11 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention;
FIG. 12 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 14 and fig. 15 are schematic cross-sectional views of a display device according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. It should be noted that the terms "upper", "lower", "left", "right", and the like used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it is also to be understood that when an element is referred to as being "on" or "under" another element, it can be directly formed on "or" under "the other element or be indirectly formed on" or "under" the other element through an intermediate element. The terms "first," "second," and the like, are used for descriptive purposes only and not for purposes of limitation, and do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, fig. 2 is a schematic partial structural diagram of a second display region of the display panel according to the embodiment of the present invention, and fig. 3 is a schematic sectional structural diagram of the second display region. Referring to fig. 1, the display panel provided in this embodiment includes a first display area 10 and a second display area 20 adjacent to the first display area 10, the second display area 20 is reused as a light sensing element setting area, the second display area 20 includes a plurality of non-transparent areas 21 and transparent areas 22 around the non-transparent areas 21, and external light enters the light sensing elements through the transparent areas 22; referring to fig. 2, the light-transmitting region 22 includes a first light-transmitting region 221 and a second light-transmitting region 222; the non-light-transmitting regions 21 and the first light-transmitting regions 221 are arranged at intervals in the first direction x, and the length of the first light-transmitting region 221 is the same as that of an adjacent non-light-transmitting region 21 in the second direction y; the non-transmission region 21 and the second transmission region 222 are arranged at intervals in the second direction y, and the length of the second transmission region 222 in the first direction x is equal to the sum of the lengths of a non-transmission region 21 and a first transmission region 221 adjacent to the second transmission region 222 in the first direction x; the first direction x and the second direction y intersect; referring to fig. 3, the display panel further includes a first substrate 100 on a light emitting side of the display panel;
the length y of the non-transmission region 21 in the first direction x1Satisfies the following conditions:
dtanθ≤y1≤2dtanθ (1)；
the length of the non-transmission region 21 in the second direction y is y2Satisfies the following conditions:
dtanθ≤y2≤2dtanθ (2)；
wherein the content of the first and second substances,
n1denotes the refractive index, n, of the medium on the light-emitting side of the first substrate 1002Denotes a refractive index of the first substrate 100, and d denotes a thickness of the first substrate.
It can be understood that the display panel provided in the embodiment of the present invention is suitable for a display device that needs to dispose a light sensing element under a screen, where the light sensing element may be a camera, an infrared detector, or other specific light sensing elements, and the following description will take the light sensing element as a camera as an example. Because the requirement of the camera on light is high, in the prior art, a hollowed area is generally arranged at the edge or inside of a display area, the hollowed area cannot display, and the real comprehensive screen design is difficult to realize. The aperture of the existing camera for receiving light is generally arranged in a circle, so that the second display area 20 is exemplarily shown as a circular area in fig. 1. In other embodiments, the second display area 20 may be one or more, for example, when a plurality of light sensing elements are disposed, a plurality of second display areas 20 may be disposed. The second display area 20 may be a continuous area or a discontinuous area, which may be designed according to an actual application environment, and is not limited herein. In some implementations, the second display area 20 can be disposed at an edge of the display area of the display panel, or the second display area 20 can be disposed inside the display area of the display panel, as shown in fig. 1. For example, the second display area 20 may be disposed at an upper left corner, an upper right corner, or a middle region of the first display area 11. In practical applications, the specific position of the second display area 20 may be designed and determined according to practical application environments, which is not limited in the embodiment of the present invention.
In a specific implementation, the shape of the second display area 20 may be a regular shape, such as a rectangle, a rounded rectangle, a circle, an ellipse, etc., and the shape of the second display area 20 may also be an irregular shape, such as a water drop shape. Of course, in practical applications, the shape of the second display area 20 may be designed according to the shape of the elements disposed in the second display area 20, and is not limited herein.
In the embodiment of the present invention, the relative position relationship and the shape of the first display area 10 and the second display area 20 are not limited, and may be specifically set according to the screen design of the display device. Taking a mobile phone as an example, the second display area 20 can be arranged at the upper left corner or the upper right corner of the display area, the camera is arranged at the corner, and the second display area 20 can be used for simple and quick function services such as time display, weather and information reminding.
In the embodiment of the present invention, the Light-transmitting region 22 is a region where no pixel unit is disposed, and the non-Light-transmitting region 21 includes at least one pixel unit, where the pixel unit may include a red sub-pixel, a green sub-pixel and a blue sub-pixel, and each of the sub-pixels may include an Organic Light-Emitting Diode (OLED). Referring to FIG. 3, schematically shown in FIG. 3A schematic diagram of a light path when external light is incident on the display panel is shown, and for convenience of description, light incident modes shown in different regions are different. When the light beam a vertically enters the display panel, the light beam a at the position corresponding to the first light-transmitting area 221 is directly transmitted by the display panel and then received by a camera (not shown in fig. 3) disposed below the display panel, and the light beam a at the position corresponding to the non-light-transmitting area 21 is blocked; when the light beam b is obliquely incident to the display panel, the light beam b is refracted on the upper surface of the first substrate 100 according to the refraction law n1sinθ1＝n2sinθ2Is obtained by
Wherein n is1And theta1Respectively representing the refractive index of the medium on the light incident side (i.e., the refractive index of the medium on the light emitting side of the first substrate 100, which is generally air) and the incident angle, n2And theta2Respectively representing the refractive index and the angle of refraction of the medium on the refractive side (i.e., the first substrate 100, which may be a glass substrate, for example), when the incident angle θ1When the maximum incidence angle is 90 degrees, the light rays are glancing at the moment
By setting the length y of the non-light-transmitting area 21 in the first direction x1Satisfying the above formula (1), the oblique incident light b of the region corresponding to the transparent region 221 can be blocked by the non-transparent region 21, as shown in fig. 3, wherein the light b1，b2Corresponds to y1In the case of dtan θ, the light ray b1And b2Just shielded by the opaque region 21 (b)1And b2The position of the refracted light on the lower surface of the first substrate 100 is exactly the edge of the non-transmission region 21); light ray b3，b4Corresponds to y12dtan theta, in which case b3And b4The refracted light meets at a point on the lower surface of the first substrate 100. When the length of the non-light-transmitting area 21 is greater than 2dtan theta, the non-light-transmitting area can also block oblique light of the light-transmitting area, but the larger the area occupied by the non-light-transmitting area is, the smaller the area of the corresponding light-transmitting area is, and the intensity of light received by the camera can be influenced, so that the y is set1Between dtan theta and 2dtan theta. The length y of the non-transmission region 21 in the second direction y2Satisfying the above equation (2), the arrangement is similar to the length arrangement in the first direction x, and will not be described in detail here.
According to the technical scheme of the embodiment of the invention, the plurality of non-light-transmitting areas are arranged in the second display area, and the non-light-transmitting areas can be provided with the sub-pixels, so that the normal display of the second display area is realized; by arranging a light-transmitting region at the periphery of the non-light-transmitting region and the length y of the non-light-transmitting region in the first direction1Satisfies dtan theta ≦ y12dtan theta or less, and a length y in the second direction2Satisfies the following conditions: dtan theta is less than or equal to y2The light ray vertically incident in the light transmission area can be transmitted to the display panel to reach the light sensing element (such as a camera) arranged in the second display area by less than or equal to 2dtan theta, and the visual field of the light sensing element is ensured; the light of the oblique incidence of the light-transmitting area can be shielded by the non-light-transmitting area to prevent interference, so that the screen occupation ratio of the display panel is improved under the condition that the light of the light sensing element is sufficient under the screen, and the comprehensive screen display effect is realized.
On the basis of the above embodiment, optionally, the length x of the first light-transmitting region 221 in the first direction x1Satisfies the following conditions:
x1≥2dtanθ (3)；
the second light-transmitting region 222 has a length x in the second direction y2Satisfies the following conditions:
x2≥2dtanθ (4)；
wherein the content of the first and second substances,
n1denotes the refractive index, n, of the medium on the light-emitting side of the first substrate 1002Denotes a refractive index of the first substrate 100, and d denotes a thickness of the first substrate 100.
Illustratively, fig. 3 also schematically shows a schematic optical path diagram of an oblique incident light beam c in a region corresponding to the non-light-transmitting region 21, by setting a length x of the first light-transmitting region 221 in the first direction x1Satisfying the above formula (3), the oblique incident light rays in the corresponding region of the non-transparent region 21 can be incident to the display region through the transparent region 221The camera below the display panel ensures the visual field of the camera. As shown in fig. 3, wherein the light ray c1，c2Corresponds to x1Critical case at 2dtan theta, when ray c1And c2Just transmits through the light-transmitting region 221 (c)1And c2The outgoing position of the refracted light at the lower surface of the first substrate 100 meets at one point), and a light ray c3，c4Corresponds to x1>In the case of 2dtan θ, it can be understood that x is1The larger the light transmission of the display panel, the clearer the camera image, but x1When the display area is larger, the display effect of the second display area may be poorer, and x can be set according to actual conditions during specific implementation1The specific dimensions are not limited in the embodiments of the present invention. The second light-transmitting region 222 has a length x in the second direction y2Satisfying the above equation (4), the arrangement is similar to the length arrangement in the first direction x, and will not be described in detail here.
Alternatively, with continued reference to fig. 2, a non-transmissive region 21, a first transmissive region 221, and a second transmissive region 222 disposed adjacent to each other form a sub-display region 200; the length of the sub display area 200 in the first direction x varies non-periodically and/or the length of the sub display area 200 in the second direction y varies non-periodically.
It can be understood that, when the light-transmitting area and the non-light-transmitting area are arranged at intervals, a grating structure can be formed, when light is transmitted through the light-transmitting area, multi-level diffraction stripes can be formed to influence the imaging effect of the camera, so that the lengths of the sub-display areas 200 in the first direction x and/or the second direction y can be set to be in aperiodic change, that is, the sum of the lengths of the non-light-transmitting area and the light-transmitting area at different positions is set to be in aperiodic regulation, diffraction of the light-transmitting area to the light can be reduced, and the imaging effect of the camera is improved.
It should be noted that, in fig. 2, the sub-display area 200 is only illustrated as being square or approximately square, and the invention is not limited thereto. That is, in the embodiment of the present invention, the shape of the sub-display area 200 may be a square, an approximate square, a parallelogram, a triangle, a trapezoid, or the like. Further, the shape of the non-transmission region 21, the first transmission region 221 and the second transmission region 222 may also be square, approximately square, parallelogram, triangle, trapezoid, or the like.
Optionally, in the plurality of sub-display regions arranged along the first direction, a length of at least one of the non-transmissive region and the first transmissive region in the first direction varies non-periodically.
It is understood that the lengths of the sub-display regions in the first direction vary non-periodically, and may be different widths of the opaque regions in different sub-display regions, and the widths of the first opaque regions are the same, for example, the width of the opaque region is arbitrarily set between dtan θ and 2dtan θ (including an end point), and the width of the first opaque region is a certain value greater than or equal to 2dtan θ; the widths of the non-light-transmitting regions in different sub-display regions may be the same, and the widths of the first light-transmitting regions are different, for example, the widths of the non-light-transmitting regions are both a value between (including an end point of) dtan theta and 2dtan theta, and the width of the first light-transmitting region is a different value greater than or equal to 2dtan theta; the widths of the non-transmission region and the first transmission region in different sub-display regions can be different; or at least partial non-light-transmitting areas or the first non-light-transmitting areas have the same width, and the width of the sub-display area is ensured to be irregular without periodicity. In other embodiments, the widths of the sub-display regions may be the same, and the widths of the first light-transmitting regions in different sub-display regions may be different. The following schematic diagrams schematically illustrate several arrangements of the sub-display regions, and it should be noted that the following schematic diagrams are only schematic illustrations of the arrangements of the sub-display regions, and are not actual sizes or proportions.
Optionally, in the sub-display regions arranged along the first direction, the lengths of the non-light-transmitting regions in the first direction are all the same, and the lengths of the first light-transmitting regions in the first direction are all different.
For example, fig. 4 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention. Referring to fig. 4, in the plurality of sub-display regions 200 arranged along the first direction x, the widths of the non-light-transmitting regions 21 in the first direction x are all the same and are all W, and the lengths of the first light-transmitting regions 221 in the first direction x are all different. In fig. 4 exemplarily showing five sub-display areas 200 in the first direction x, the width L1 ≠ L2 ≠ L3 ≠ L4 ≠ L5 of the first light-transmitting area 221. Therefore, the first light-transmitting area 221 is prevented from forming a grating in the first direction x, diffraction of light rays in the first direction x is eliminated or weakened, and the imaging effect of the camera is improved.
It is understood that, in other embodiments, the width of the first light-transmitting region 221 may be the same, and the specific implementation may be designed according to actual requirements.
Optionally, in the sub-display regions arranged along the first direction, lengths of the first light-transmitting regions in the first direction are all the same, and lengths of the non-light-transmitting regions in the first direction are all different.
For example, fig. 5 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention. Referring to fig. 5, in the sub-display regions 200 arranged along the first direction x, the widths of the first light-transmitting regions 221 in the first direction x are all the same and are all L, and the lengths of the non-light-transmitting regions 21 in the first direction x are all different. Fig. 5 exemplarily shows five sub-display areas 200 in the first direction x, and the width W1 ≠ W2 ≠ W3 ≠ W4 ≠ W5 of the non-transmissive area 21. Therefore, the first light-transmitting area 221 is prevented from forming a grating in the first direction x, diffraction of light rays in the first direction x is eliminated or weakened, and the imaging effect of the camera is improved.
It is understood that, in other embodiments, the widths of the partial non-transmission regions 21 may be set to be the same, and the specific implementation may be designed according to actual requirements.
Optionally, in the sub-display regions arranged along the first direction, lengths of the first light-transmitting regions in the first direction are different, lengths of the non-light-transmitting regions in the first direction are different, and widths of different sub-display regions in the first direction are different.
For example, fig. 6 is a schematic partial structure diagram of another second display area according to an embodiment of the present invention. Referring to fig. 6, among the plurality of sub-display regions 200 arranged along the first direction x, the first light-transmitting regions 221 have different widths in the first direction x, and the non-light-transmitting regions 21 have different lengths in the first direction x. Fig. 6 exemplarily shows five sub-display regions 200 in the first direction x, the width L1 ≠ L2 ≠ L3 ≠ L4 ≠ L5 of the first light-transmissive region 221, and the width W1 ≠ W2 ≠ W3 ≠ W4 ≠ W5 of the non-light-transmissive region 21. Therefore, the first light-transmitting area 221 is prevented from forming a grating in the first direction x, diffraction of light rays in the first direction x is eliminated or weakened, and the imaging effect of the camera is improved.
In the embodiment shown in fig. 6, the widths of the sub-display areas 200 in the first direction x are different, in other embodiments, the widths of the sub-display areas 200 in the first direction x may also be set to be the same, and fig. 7 is a schematic partial structure diagram of another second display area provided in the embodiment of the present invention. Referring to fig. 7, the sub-display regions 200 are all in the same direction in the first direction x, and in any column of sub-display regions 200, the first light-transmitting regions 221 of any two adjacent sub-display regions 200 are offset in the first direction x, so that the first light-transmitting regions 221 in the same column cannot form an elongated light-transmitting region, and the elongated light-transmitting regions in different columns cannot form parallel slits, and therefore, the sub-display regions 200 in multiple columns arranged along the first direction x cannot form a grating, so that diffraction of light in the first direction x can be eliminated or reduced, and the imaging effect of the camera can be improved.
Optionally, in the plurality of sub-display regions arranged along the second direction, a length of at least one of the non-transmissive region and the second transmissive region in the second direction varies non-periodically.
The lengths of the sub-display areas in the second direction are non-periodically changed, the widths of the non-light-transmitting areas in different sub-display areas are different, the widths of the second light-transmitting areas are the same, for example, the width of the non-light-transmitting area is arbitrarily set between dtan theta and 2dtan theta (including an end point), and the width of the second light-transmitting area is a certain fixed value which is greater than or equal to 2dtan theta; the widths of the non-transmission regions in different sub-display regions are the same, and the widths of the second transmission regions are different, for example, the widths of the non-transmission regions are both a value between (including an end point of) dtan theta and 2dtan theta, and the widths of the second transmission regions are different values greater than or equal to 2dtan theta; the widths of the non-transmission region and the second transmission region in different sub-display regions can be different; or at least partial non-light-transmitting areas or second non-light-transmitting areas have the same width, and the width of the sub-display area is ensured to be irregular periodically. In other embodiments, the widths of the sub-display regions may be the same, and the widths of the second light-transmitting regions in different sub-display regions may be different. The following schematic diagrams schematically illustrate several arrangements of the sub-display regions, and it should be noted that the following schematic diagrams are only schematic illustrations of the arrangements of the sub-display regions, and are not actual sizes or proportions.
Optionally, in the sub-display regions arranged along the second direction, the lengths of the non-transmissive regions in the second direction are all the same, and the lengths of the second transmissive regions in the second direction are all different.
Fig. 8 is a schematic partial structural diagram of another second display area according to an embodiment of the present invention. Referring to fig. 8, in the plurality of sub-display regions 200 arranged along the second direction y, the widths of the non-light-transmitting regions 21 in the second direction y are all the same as W, and the lengths of the second light-transmitting regions 222 in the second direction y are all different from each other. Five sub-display regions 200 in the second direction y are exemplarily shown in fig. 8, and the width L1 ≠ L2 ≠ L3 ≠ L4 ≠ L5 of the second light-transmitting region 221. Therefore, the second light-transmitting area 221 is prevented from forming a grating in the second direction y, diffraction of light rays in the second direction y is eliminated or weakened, and the imaging effect of the camera is improved.
It is understood that, in other embodiments, the width of the second light-transmitting region 222 may be the same, and the specific implementation may be designed according to actual requirements.
Optionally, in the sub-display regions arranged along the second direction, lengths of the second light-transmitting regions in the second direction are all the same, and lengths of the non-light-transmitting regions in the second direction are all different.
Fig. 9 is a schematic partial structural diagram of another second display area according to an embodiment of the present invention. Referring to fig. 9, in the plurality of sub-display regions 200 arranged along the second direction y, the widths of the second light-transmitting regions 222 in the second direction y are all the same and are all L, and the lengths of the non-light-transmitting regions 21 in the second direction y are all different. In fig. 9 exemplarily showing five sub-display areas 200 in the second direction y, the width W1 ≠ W2 ≠ W3 ≠ W4 ≠ W5 of the non-light-transmissive area 21. Therefore, the second light-transmitting area 222 is prevented from forming a grating in the second direction y, diffraction of light rays in the second direction y is eliminated or weakened, and the imaging effect of the camera is improved.
It is understood that, in other embodiments, the widths of the partial non-transmission regions 21 may be set to be the same, and the specific implementation may be designed according to actual requirements.
Optionally, in the sub-display regions arranged along the second direction, lengths of the second light-transmitting regions in the second direction are different, lengths of the non-light-transmitting regions in the second direction are different, and widths of different sub-display regions in the second direction are different.
Fig. 10 is a schematic partial structural diagram of another second display area according to an embodiment of the present invention. Referring to fig. 10, in the plurality of sub-display regions 200 arranged along the second direction y, the widths of the second light-transmitting regions 222 in the second direction y are all different, and the lengths of the non-light-transmitting regions 21 in the second direction y are all different. Fig. 10 exemplarily shows five sub-display regions 200 in the second direction y, the width L1 ≠ L2 ≠ L3 ≠ L4 ≠ L5, and the width W1 ≠ W2 ≠ W3 ≠ W4 ≠ W5 of the non-transmissive region 21. Therefore, the second light-transmitting area 222 is prevented from forming a grating in the second direction y, diffraction of light rays in the second direction y is eliminated or weakened, and the imaging effect of the camera is improved.
In the embodiment shown in fig. 10, the widths of the sub-display areas 200 in the second direction y are different, in other embodiments, the widths of the sub-display areas 200 in the second direction y may also be set to be the same, and fig. 11 is a schematic partial structure diagram of another second display area provided in the embodiment of the present invention. Referring to fig. 11, the sub-display regions 200 are in the same direction in the second direction y, and in any row of the sub-display regions 200, the second light-transmitting regions 222 of any two adjacent sub-display regions 200 are offset in the second direction y, so that the second light-transmitting regions 222 in the same row cannot form a strip-shaped light-transmitting region, and the strip-shaped light-transmitting regions in different rows cannot form parallel slits, and therefore, the sub-display regions 200 in multiple rows arranged in the second direction y cannot form a grating, so that diffraction of light in the second direction y can be eliminated or reduced, and the imaging effect of the camera can be improved.
In other embodiments, the sub-display areas may be configured to change non-periodically in both the first direction and the second direction, for example, fig. 12 is a schematic partial structure diagram of another second display area provided in the embodiment of the present invention, which shows a schematic diagram of the sub-display area 200 changing non-periodically in both the first direction x and the second direction y, and it can be understood that embodiments in which the sub-display areas 200 change non-periodically in both the first direction x and the second direction y in the above embodiments may be combined with each other to obtain more embodiments, and all embodiments are within the protection scope of the present invention.
Fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present invention. Referring to fig. 13, the display device 1 includes any one of the display panels 2 provided in the embodiments of the present invention, and further includes: the light sensing element 3 is disposed in the second display area of the display panel and located on a side away from the light emitting surface of the display panel 2, and a light sensing surface of the light sensing element 3 faces the display panel. The display device 1 may be a mobile phone, a tablet computer, or the like.
It is understood that the light-sensing element 3 may be a camera. The display device provided by the embodiment of the invention comprises any one of the display panels provided by the above embodiments, and has the same and corresponding technical effects.
Optionally, the light sensing element includes a camera or a plurality of cameras arranged in an array.
For example, fig. 14 and fig. 15 are schematic cross-sectional views of a display device according to an embodiment of the invention, respectively, referring to fig. 14, the optical sensing element 3 includes a camera 31 disposed on a side away from the light emitting surface of the display panel 2; referring to fig. 15, the optical sensing element 3 includes a plurality of cameras 32 (fig. 15 is a cross-sectional view, and only one column is shown) arranged in an array, and the specific implementation can be set according to actual requirements.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (13)
1. A display panel is characterized by comprising a first display area and a second display area adjacent to the first display area, wherein the second display area is reused as a light sensing element setting area, the second display area comprises a plurality of non-light-transmitting areas and light-transmitting areas on the periphery of the non-light-transmitting areas, and external light enters a light sensing element through the light-transmitting areas;
the light-transmitting areas comprise a first light-transmitting area and a second light-transmitting area;
the non-light-transmitting areas and the first light-transmitting areas are arranged at intervals in a first direction, and the length of each first light-transmitting area in a second direction is the same as that of an adjacent non-light-transmitting area;
the non-light-transmitting areas and the second light-transmitting areas are arranged at intervals in a second direction, and the length of each second light-transmitting area in the first direction is equal to the sum of the lengths of one non-light-transmitting area and one first light-transmitting area adjacent to each second light-transmitting area in the first direction; the first direction and the second direction intersect;
the display panel also comprises a first substrate positioned on the light-emitting side of the display panel;
the length y of the non-light-transmitting region in the first direction1Satisfies the following conditions:
d tanθ≤y1≤2d tanθ；
the length of the non-light-transmitting region in the second direction is y2Satisfies the following conditions:
d tanθ≤y2≤2d tanθ；
wherein the content of the first and second substances,
n1representing the refractive index, n, of the medium at the light exit side of the first substrate2Denotes a refractive index of the first substrate, d denotes the first baseThe thickness of the plate.
2. The display panel according to claim 1, wherein a length x of the first light-transmitting region in the first direction1Satisfies the following conditions:
x1≥2d tanθ；
the length of the second light-transmitting area in the second direction is x2Satisfies the following conditions:
x2≥2d tanθ；
wherein the content of the first and second substances,
n1representing the refractive index, n, of the medium at the light exit side of the first substrate2Denotes a refractive index of the first substrate, and d denotes a thickness of the first substrate.
3. The display panel according to claim 2, wherein one of the non-transmissive regions, one of the first transmissive regions, and one of the second transmissive regions, which are adjacently disposed, form a sub-display region;
the length of the sub-display area in the first direction changes non-periodically, and/or
The length of the sub-display area in the second direction varies non-periodically.
4. The display panel according to claim 3, wherein at least one of the non-transmission region and the first transmission region in the plurality of sub-display regions arranged in the first direction has a length in the first direction that varies non-periodically.
5. The display panel according to claim 4, wherein the lengths of the non-transmission regions in the first direction are the same among the plurality of sub-display regions arranged in the first direction, and the lengths of the first transmission regions in the first direction are different among the plurality of sub-display regions.
6. The display panel according to claim 4, wherein in the plurality of sub-display regions arranged in the first direction, lengths of the first light-transmitting regions in the first direction are all the same, and lengths of the non-light-transmitting regions in the first direction are all different.
7. The display panel according to claim 4, wherein in the plurality of sub-display regions arranged along the first direction, the lengths of the first light-transmitting regions in the first direction are different, the lengths of the non-light-transmitting regions in the first direction are different, and the widths of the different sub-display regions in the first direction are different.
8. The display panel according to claim 3, wherein a length of at least one of the non-transmission region and the second transmission region in the second direction among the plurality of sub display regions arranged in the second direction varies non-periodically.
9. The display panel according to claim 8, wherein in the plurality of sub display regions arranged in the second direction, lengths of the non-light-transmitting regions in the second direction are all the same, and lengths of the second light-transmitting regions in the second direction are all different.
10. The display panel according to claim 8, wherein in the plurality of sub display regions arranged in the second direction, lengths of the second light-transmitting regions in the second direction are all the same, and lengths of the non-light-transmitting regions in the second direction are all different.
11. The display panel according to claim 8, wherein in the plurality of sub-display regions arranged in the second direction, the lengths of the second light-transmitting regions in the second direction are different, the lengths of the non-light-transmitting regions in the second direction are different, and the widths of the different sub-display regions in the second direction are different.
12. A display device comprising the display panel according to any one of claims 1 to 11, further comprising:
the light sensing element is arranged in the second display area of the display panel and is positioned on one side departing from the light emergent surface of the display panel, and the light sensitive surface of the light sensing element faces the display panel.
13. The display device as claimed in claim 12, wherein the light sensing element comprises a camera or a plurality of cameras arranged in an array.
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